4223187 has 12 divisors (see below), whose sum is σ = 6421480. Its totient is φ = 2667168.

The previous prime is 4223179. The next prime is 4223189. The reversal of 4223187 is 7813224.

It is not a de Polignac number, because 4223187 - 2³ = 4223179 is a prime.

It is a Duffinian number.

4223187 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4223187.

It is not an unprimeable number, because it can be changed into a prime (4223189) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12178 + ... + 12519.

Almost surely, 2^4223187 is an apocalyptic number.

4223187 is a deficient number, since it is larger than the sum of its proper divisors (2198293).

4223187 is a wasteful number, since it uses less digits than its factorization.

4223187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24722 (or 24719 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 4223187 is about 2055.0394156804. The cubic root of 4223187 is about 161.6392291742.

The spelling of 4223187 in words is "four million, two hundred twenty-three thousand, one hundred eighty-seven".